Sunspot drawing of 1997-9-18

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https://doi.org/10.7891/e-manuscripta-149723



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1997-09-18
07:30
Hs 1304.6:5109
https://doi.org/10.7891/e-manuscripta-149723
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
78 2 7 J -25 298
81 16 23 C 27 227
2 18 30